javascript - 由于 URI 错误，无法连接到 MongoDB

Question

我试图在 Node 服务器上运行 mongoDB
Full Code here from MongoDB :

My mongo version: 4.4.3

Node version: v15.7.0

我已经从 MongoDB 导入了入门代码，代码如下:

const { MongoClient } = require("mongodb");
// Connection URI
const uri =
  "mongodb+srv://sample-hostname:27017/?poolSize=20&writeConcern=majority";
// Create a new MongoClient
const client = new MongoClient(uri);
async function run() {
  try {
    // Connect the client to the server
    await client.connect();
    // Establish and verify connection
    await client.db("admin").command({ ping: 1 });
    console.log("Connected successfully to server");
  } finally {
    // Ensures that the client will close when you finish/error
    await client.close();
  }
}
run().catch(console.dir);

在终端上，当我运行“node app.js”时，它会抛出以下错误:

> (node:79653) Warning: Accessing non-existent property 'MongoError' of
> module exports inside circular dependency (Use `node --trace-warnings
> ...` to show where the warning was created) MongoParseError: URI does
> not have hostname, domain name and tld
>     at parseSrvConnectionString (/home/harmony/Desktop/FruitsProject/node_modules/mongodb/lib/core/uri_parser.js:50:21)
>     at parseConnectionString (/home/harmony/Desktop/FruitsProject/node_modules/mongodb/lib/core/uri_parser.js:594:12)
>     at connect (/home/harmony/Desktop/FruitsProject/node_modules/mongodb/lib/operations/connect.js:284:3)
>     at /home/harmony/Desktop/FruitsProject/node_modules/mongodb/lib/mongo_client.js:225:5
>     at maybePromise (/home/harmony/Desktop/FruitsProject/node_modules/mongodb/lib/utils.js:681:3)
>     at MongoClient.connect (/home/harmony/Desktop/FruitsProject/node_modules/mongodb/lib/mongo_client.js:221:10)
>     at run (/home/harmony/Desktop/FruitsProject/app.js:12:18)
>     at Object.<anonymous> (/home/harmony/Desktop/FruitsProject/app.js:21:1)

Answer 1

错误 Accessing non-existent property 'MongoError' of > module exports inside circular dependency是由 mongodb 3.6.4 中的错误引起的
已经举报here
返回版本 3.6.3 对我有用:

npm uninstall mongodb --save

安装版本 3.6.3

npm i mongodb@3.6.3